KENNEDY SPACE CENTER, FLA. - The Mars Reconnaissance Orbiter (MRO) spacecraft waits for installation of a second gimbal on its solar panel. A gimbal is an appliance that allows an object to remain horizontal even as its support tips. In the PHSF, the spacecraft will undergo multiple mechanical assembly operations and electrical tests to verify its readiness for launch. A major deployment test will check out the spacecraft?s large solar arrays. The MRO was built by Lockheed Martin for NASA?s Jet Propulsion Laboratory in California. It is the next major step in Mars exploration and scheduled for launch from Cape Canaveral Air Force Station in a window opening Aug. 10. The MRO is an important next step in fulfilling NASA?s vision of space exploration and ultimately sending human explorers to Mars and beyond.